Trial Outcomes & Findings for Blood Flow Restriction Therapy Following Acute Shoulder Injury Patients (NCT NCT06223373)

NCT ID: NCT06223373

Last Updated: 2025-11-04

Results Overview

measuring shoulder strength in injured and non-injured arms for both study groups using a Biodex testing machine - Low Score indicates low torque/strength, high score indicates high torque/strength

Recruitment status

TERMINATED

Study phase

NA

Target enrollment

3 participants

Primary outcome timeframe

Baseline

Results posted on

2025-11-04

Participant Flow

Participant milestones

Participant milestones
Measure
Blood Flow Restriction (BFR)
Blood Flow Restriction (BFR) pressurized per standard protocols in addition to our institutional rehabilitation protocol Blood Flow Restriction: In the BFR group, the tourniquet will be pressurized to 50% limb occlusion pressure (LOP), which is the pressure necessary for occluding 50% of arterial limb flow in the upper extremity.
"Sham" Blood Flow Restriction (BFR)
rehabilitation using "sham BFR" as well as our institutional rehabilitation protocol "sham" Blood Flow Restriction: In the sham BFR group, the tourniquet will be pressurized to 0% occlusion pressure, while maintaining enough pressure to keep the tourniquet in place.
Overall Study
STARTED
1
2
Overall Study
COMPLETED
0
0
Overall Study
NOT COMPLETED
1
2

Reasons for withdrawal

Reasons for withdrawal
Measure
Blood Flow Restriction (BFR)
Blood Flow Restriction (BFR) pressurized per standard protocols in addition to our institutional rehabilitation protocol Blood Flow Restriction: In the BFR group, the tourniquet will be pressurized to 50% limb occlusion pressure (LOP), which is the pressure necessary for occluding 50% of arterial limb flow in the upper extremity.
"Sham" Blood Flow Restriction (BFR)
rehabilitation using "sham BFR" as well as our institutional rehabilitation protocol "sham" Blood Flow Restriction: In the sham BFR group, the tourniquet will be pressurized to 0% occlusion pressure, while maintaining enough pressure to keep the tourniquet in place.
Overall Study
Lost to Follow-up
1
2

Baseline Characteristics

Blood Flow Restriction Therapy Following Acute Shoulder Injury Patients

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Blood Flow Restriction (BFR)
n=1 Participants
Blood Flow Restriction (BFR) pressurized per standard protocols in addition to our institutional rehabilitation protocol Blood Flow Restriction: In the BFR group, the tourniquet will be pressurized to 50% limb occlusion pressure (LOP), which is the pressure necessary for occluding 50% of arterial limb flow in the upper extremity.
"Sham" Blood Flow Restriction (BFR)
n=2 Participants
rehabilitation using "sham BFR" as well as our institutional rehabilitation protocol "sham" Blood Flow Restriction: In the sham BFR group, the tourniquet will be pressurized to 0% occlusion pressure, while maintaining enough pressure to keep the tourniquet in place.
Total
n=3 Participants
Total of all reporting groups
Age, Continuous
44 years
STANDARD_DEVIATION 0 • n=15 Participants
41.5 years
STANDARD_DEVIATION 10.6 • n=161 Participants
42.3 years
STANDARD_DEVIATION 7.6 • n=100 Participants
Sex: Female, Male
Female
0 Participants
n=15 Participants
1 Participants
n=161 Participants
1 Participants
n=100 Participants
Sex: Female, Male
Male
1 Participants
n=15 Participants
1 Participants
n=161 Participants
2 Participants
n=100 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants
n=15 Participants
0 Participants
n=161 Participants
0 Participants
n=100 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
1 Participants
n=15 Participants
2 Participants
n=161 Participants
3 Participants
n=100 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=15 Participants
0 Participants
n=161 Participants
0 Participants
n=100 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=15 Participants
0 Participants
n=161 Participants
0 Participants
n=100 Participants
Race (NIH/OMB)
Asian
0 Participants
n=15 Participants
0 Participants
n=161 Participants
0 Participants
n=100 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=15 Participants
0 Participants
n=161 Participants
0 Participants
n=100 Participants
Race (NIH/OMB)
Black or African American
0 Participants
n=15 Participants
1 Participants
n=161 Participants
1 Participants
n=100 Participants
Race (NIH/OMB)
White
1 Participants
n=15 Participants
1 Participants
n=161 Participants
2 Participants
n=100 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=15 Participants
0 Participants
n=161 Participants
0 Participants
n=100 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=15 Participants
0 Participants
n=161 Participants
0 Participants
n=100 Participants

PRIMARY outcome

Timeframe: Baseline

measuring shoulder strength in injured and non-injured arms for both study groups using a Biodex testing machine - Low Score indicates low torque/strength, high score indicates high torque/strength

Outcome measures

Outcome measures
Measure
"Sham" Blood Flow Restriction (BFR)
n=2 Participants
rehabilitation using "sham BFR" as well as our institutional rehabilitation protocol "sham" Blood Flow Restriction: In the sham BFR group, the tourniquet will be pressurized to 0% occlusion pressure, while maintaining enough pressure to keep the tourniquet in place.
Blood Flow Restriction (BFR)
n=1 Participants
Blood Flow Restriction (BFR) pressurized per standard protocols in addition to our institutional rehabilitation protocol Blood Flow Restriction: In the BFR group, the tourniquet will be pressurized to 50% limb occlusion pressure (LOP), which is the pressure necessary for occluding 50% of arterial limb flow in the upper extremity.
Shoulder Muscle Strength Analysis: External Rotation (ER) Peak Torque Average (60 Degrees/Second)
13.1 ft-lb (pound foot)
Standard Deviation 8.3
28.6 ft-lb (pound foot)
Standard Deviation 0

PRIMARY outcome

Timeframe: Week 6

Population: Follow up measure was never performed or recorded for 1 sham patient due to loss of follow up.

measuring shoulder strength in injured and non-injured arms for both study groups using a Biodex testing machine - Low Score indicates low torque/strength, high score indicates high torque/strength

Outcome measures

Outcome measures
Measure
"Sham" Blood Flow Restriction (BFR)
n=1 Participants
rehabilitation using "sham BFR" as well as our institutional rehabilitation protocol "sham" Blood Flow Restriction: In the sham BFR group, the tourniquet will be pressurized to 0% occlusion pressure, while maintaining enough pressure to keep the tourniquet in place.
Blood Flow Restriction (BFR)
n=1 Participants
Blood Flow Restriction (BFR) pressurized per standard protocols in addition to our institutional rehabilitation protocol Blood Flow Restriction: In the BFR group, the tourniquet will be pressurized to 50% limb occlusion pressure (LOP), which is the pressure necessary for occluding 50% of arterial limb flow in the upper extremity.
Shoulder Muscle Strength Analysis: External Rotation (ER) Peak Torque Average (60 Degrees/Second)
19.2 ft-lb (pound foot)
Standard Deviation 0
23.2 ft-lb (pound foot)
Standard Deviation 0

PRIMARY outcome

Timeframe: Baseline

Low Score indicates low torque/strength, high score indicates high torque/strength

Outcome measures

Outcome measures
Measure
"Sham" Blood Flow Restriction (BFR)
n=2 Participants
rehabilitation using "sham BFR" as well as our institutional rehabilitation protocol "sham" Blood Flow Restriction: In the sham BFR group, the tourniquet will be pressurized to 0% occlusion pressure, while maintaining enough pressure to keep the tourniquet in place.
Blood Flow Restriction (BFR)
n=1 Participants
Blood Flow Restriction (BFR) pressurized per standard protocols in addition to our institutional rehabilitation protocol Blood Flow Restriction: In the BFR group, the tourniquet will be pressurized to 50% limb occlusion pressure (LOP), which is the pressure necessary for occluding 50% of arterial limb flow in the upper extremity.
Shoulder Muscle Strength Analysis: External Rotation (ER) Peak Torque Average (180 Degrees/Second)
11.1 ft-lb (pound foot)
Standard Deviation 5.9
19.0 ft-lb (pound foot)
Standard Deviation 0

PRIMARY outcome

Timeframe: Week 6

Population: Follow up measure was never performed or recorded for 1 sham patient due to loss of follow up.

Low Score indicates low torque/strength, high score indicates high torque/strength

Outcome measures

Outcome measures
Measure
"Sham" Blood Flow Restriction (BFR)
n=1 Participants
rehabilitation using "sham BFR" as well as our institutional rehabilitation protocol "sham" Blood Flow Restriction: In the sham BFR group, the tourniquet will be pressurized to 0% occlusion pressure, while maintaining enough pressure to keep the tourniquet in place.
Blood Flow Restriction (BFR)
n=1 Participants
Blood Flow Restriction (BFR) pressurized per standard protocols in addition to our institutional rehabilitation protocol Blood Flow Restriction: In the BFR group, the tourniquet will be pressurized to 50% limb occlusion pressure (LOP), which is the pressure necessary for occluding 50% of arterial limb flow in the upper extremity.
Shoulder Muscle Strength Analysis: External Rotation (ER) Peak Torque Average (180 Degrees/Second)
13.9 ft-lb (pound foot)
Standard Deviation 0
16.6 ft-lb (pound foot)
Standard Deviation 0

PRIMARY outcome

Timeframe: Baseline

Low Score indicates low torque/strength, high score indicates high torque/strength

Outcome measures

Outcome measures
Measure
"Sham" Blood Flow Restriction (BFR)
n=2 Participants
rehabilitation using "sham BFR" as well as our institutional rehabilitation protocol "sham" Blood Flow Restriction: In the sham BFR group, the tourniquet will be pressurized to 0% occlusion pressure, while maintaining enough pressure to keep the tourniquet in place.
Blood Flow Restriction (BFR)
n=1 Participants
Blood Flow Restriction (BFR) pressurized per standard protocols in addition to our institutional rehabilitation protocol Blood Flow Restriction: In the BFR group, the tourniquet will be pressurized to 50% limb occlusion pressure (LOP), which is the pressure necessary for occluding 50% of arterial limb flow in the upper extremity.
Shoulder Muscle Strength Analysis: External Rotation (ER) Peak Torque Average (300 Degrees/Second)
7.0 ft-lb (pound foot)
Standard Deviation 0.28
14.4 ft-lb (pound foot)
Standard Deviation 0

PRIMARY outcome

Timeframe: Week 6

Population: Follow up measure was never performed or recorded for 1 sham patient due to loss of follow up.

Low Score indicates low torque/strength, high score indicates high torque/strength

Outcome measures

Outcome measures
Measure
"Sham" Blood Flow Restriction (BFR)
n=1 Participants
rehabilitation using "sham BFR" as well as our institutional rehabilitation protocol "sham" Blood Flow Restriction: In the sham BFR group, the tourniquet will be pressurized to 0% occlusion pressure, while maintaining enough pressure to keep the tourniquet in place.
Blood Flow Restriction (BFR)
n=1 Participants
Blood Flow Restriction (BFR) pressurized per standard protocols in addition to our institutional rehabilitation protocol Blood Flow Restriction: In the BFR group, the tourniquet will be pressurized to 50% limb occlusion pressure (LOP), which is the pressure necessary for occluding 50% of arterial limb flow in the upper extremity.
Shoulder Muscle Strength Analysis: External Rotation (ER) Peak Torque Average (300 Degrees/Second)
13.6 ft-lb (pound foot)
Standard Deviation 0
11.2 ft-lb (pound foot)
Standard Deviation 0

PRIMARY outcome

Timeframe: Baseline

Low Score indicates low torque/strength, high score indicates high torque/strength

Outcome measures

Outcome measures
Measure
"Sham" Blood Flow Restriction (BFR)
n=2 Participants
rehabilitation using "sham BFR" as well as our institutional rehabilitation protocol "sham" Blood Flow Restriction: In the sham BFR group, the tourniquet will be pressurized to 0% occlusion pressure, while maintaining enough pressure to keep the tourniquet in place.
Blood Flow Restriction (BFR)
n=1 Participants
Blood Flow Restriction (BFR) pressurized per standard protocols in addition to our institutional rehabilitation protocol Blood Flow Restriction: In the BFR group, the tourniquet will be pressurized to 50% limb occlusion pressure (LOP), which is the pressure necessary for occluding 50% of arterial limb flow in the upper extremity.
Shoulder Muscle Strength Analysis: Internal Rotation (IR) Peak Torque Average (60 Degrees/Second)
11.0 ft-lb (pound foot)
Standard Deviation 9.5
23.2 ft-lb (pound foot)
Standard Deviation 0

PRIMARY outcome

Timeframe: Week 6

Population: Follow up measure was never performed or recorded for 1 sham patient due to loss of follow up.

Low Score indicates low torque/strength, high score indicates high torque/strength

Outcome measures

Outcome measures
Measure
"Sham" Blood Flow Restriction (BFR)
n=1 Participants
rehabilitation using "sham BFR" as well as our institutional rehabilitation protocol "sham" Blood Flow Restriction: In the sham BFR group, the tourniquet will be pressurized to 0% occlusion pressure, while maintaining enough pressure to keep the tourniquet in place.
Blood Flow Restriction (BFR)
n=1 Participants
Blood Flow Restriction (BFR) pressurized per standard protocols in addition to our institutional rehabilitation protocol Blood Flow Restriction: In the BFR group, the tourniquet will be pressurized to 50% limb occlusion pressure (LOP), which is the pressure necessary for occluding 50% of arterial limb flow in the upper extremity.
Shoulder Muscle Strength Analysis: Internal Rotation (IR) Peak Torque Average (60 Degrees/Second)
9.9 ft-lb (pound foot)
Standard Deviation 0
27.2 ft-lb (pound foot)
Standard Deviation 0

PRIMARY outcome

Timeframe: Baseline

Low Score indicates low torque/strength, high score indicates high torque/strength

Outcome measures

Outcome measures
Measure
"Sham" Blood Flow Restriction (BFR)
n=2 Participants
rehabilitation using "sham BFR" as well as our institutional rehabilitation protocol "sham" Blood Flow Restriction: In the sham BFR group, the tourniquet will be pressurized to 0% occlusion pressure, while maintaining enough pressure to keep the tourniquet in place.
Blood Flow Restriction (BFR)
n=1 Participants
Blood Flow Restriction (BFR) pressurized per standard protocols in addition to our institutional rehabilitation protocol Blood Flow Restriction: In the BFR group, the tourniquet will be pressurized to 50% limb occlusion pressure (LOP), which is the pressure necessary for occluding 50% of arterial limb flow in the upper extremity.
Shoulder Muscle Strength Analysis: Internal Rotation (IR) Peak Torque Average (180 Degrees/Second)
15.6 ft-lb (pound foot)
Standard Deviation 7.8
23.5 ft-lb (pound foot)
Standard Deviation 0

PRIMARY outcome

Timeframe: Week 6

Population: Follow up measure was never performed or recorded for 1 sham patient due to loss of follow up.

Low Score indicates low torque/strength, high score indicates high torque/strength

Outcome measures

Outcome measures
Measure
"Sham" Blood Flow Restriction (BFR)
n=1 Participants
rehabilitation using "sham BFR" as well as our institutional rehabilitation protocol "sham" Blood Flow Restriction: In the sham BFR group, the tourniquet will be pressurized to 0% occlusion pressure, while maintaining enough pressure to keep the tourniquet in place.
Blood Flow Restriction (BFR)
n=1 Participants
Blood Flow Restriction (BFR) pressurized per standard protocols in addition to our institutional rehabilitation protocol Blood Flow Restriction: In the BFR group, the tourniquet will be pressurized to 50% limb occlusion pressure (LOP), which is the pressure necessary for occluding 50% of arterial limb flow in the upper extremity.
Shoulder Muscle Strength Analysis: Internal Rotation (IR) Peak Torque Average (180 Degrees/Second)
7.6 ft-lb (pound foot)
Standard Deviation 0
26.7 ft-lb (pound foot)
Standard Deviation 0

PRIMARY outcome

Timeframe: Baseline

Low Score indicates low torque/strength, high score indicates high torque/strength

Outcome measures

Outcome measures
Measure
"Sham" Blood Flow Restriction (BFR)
n=2 Participants
rehabilitation using "sham BFR" as well as our institutional rehabilitation protocol "sham" Blood Flow Restriction: In the sham BFR group, the tourniquet will be pressurized to 0% occlusion pressure, while maintaining enough pressure to keep the tourniquet in place.
Blood Flow Restriction (BFR)
n=1 Participants
Blood Flow Restriction (BFR) pressurized per standard protocols in addition to our institutional rehabilitation protocol Blood Flow Restriction: In the BFR group, the tourniquet will be pressurized to 50% limb occlusion pressure (LOP), which is the pressure necessary for occluding 50% of arterial limb flow in the upper extremity.
Shoulder Muscle Strength Analysis: Internal Rotation (IR) Peak Torque Average (300 Degrees/Second)
14.5 ft-lb (pound foot)
Standard Deviation 2.3
23.5 ft-lb (pound foot)
Standard Deviation 0

PRIMARY outcome

Timeframe: Week 6

Population: Follow up measure was never performed or recorded for 1 sham patient due to loss of follow up.

Low Score indicates low torque/strength, high score indicates high torque/strength

Outcome measures

Outcome measures
Measure
"Sham" Blood Flow Restriction (BFR)
n=1 Participants
rehabilitation using "sham BFR" as well as our institutional rehabilitation protocol "sham" Blood Flow Restriction: In the sham BFR group, the tourniquet will be pressurized to 0% occlusion pressure, while maintaining enough pressure to keep the tourniquet in place.
Blood Flow Restriction (BFR)
n=1 Participants
Blood Flow Restriction (BFR) pressurized per standard protocols in addition to our institutional rehabilitation protocol Blood Flow Restriction: In the BFR group, the tourniquet will be pressurized to 50% limb occlusion pressure (LOP), which is the pressure necessary for occluding 50% of arterial limb flow in the upper extremity.
Shoulder Muscle Strength Analysis: Internal Rotation (IR) Peak Torque Average (300 Degrees/Second)
6.6 ft-lb (pound foot)
Standard Deviation 0
26.6 ft-lb (pound foot)
Standard Deviation 0

PRIMARY outcome

Timeframe: Baseline

Ultrasound will be used to quantify the changes in rotator cuff muscle and distal biceps cross-sectional area before and after therapy. The same multifrequency linear probe (7.5-9.0 MHz, Elegra; Siemens Medical Solutions, Erlangen, Germany) will be used throughout the study.

Outcome measures

Outcome measures
Measure
"Sham" Blood Flow Restriction (BFR)
n=2 Participants
rehabilitation using "sham BFR" as well as our institutional rehabilitation protocol "sham" Blood Flow Restriction: In the sham BFR group, the tourniquet will be pressurized to 0% occlusion pressure, while maintaining enough pressure to keep the tourniquet in place.
Blood Flow Restriction (BFR)
n=1 Participants
Blood Flow Restriction (BFR) pressurized per standard protocols in addition to our institutional rehabilitation protocol Blood Flow Restriction: In the BFR group, the tourniquet will be pressurized to 50% limb occlusion pressure (LOP), which is the pressure necessary for occluding 50% of arterial limb flow in the upper extremity.
Rotator Cuff Muscle Cross Sectional Area (CSA) Measurement: Supraspinatus
7.29 cm2
Standard Deviation 1.23
10.04 cm2
Standard Deviation 0

PRIMARY outcome

Timeframe: Week 3

Population: Patient elected to do PT at home and was lost to follow up

Ultrasound will be used to quantify the changes in rotator cuff muscle and distal biceps cross-sectional area before and after therapy. The same multifrequency linear probe (7.5-9.0 MHz, Elegra; Siemens Medical Solutions, Erlangen, Germany) will be used throughout the study.

Outcome measures

Outcome measures
Measure
"Sham" Blood Flow Restriction (BFR)
n=1 Participants
rehabilitation using "sham BFR" as well as our institutional rehabilitation protocol "sham" Blood Flow Restriction: In the sham BFR group, the tourniquet will be pressurized to 0% occlusion pressure, while maintaining enough pressure to keep the tourniquet in place.
Blood Flow Restriction (BFR)
n=1 Participants
Blood Flow Restriction (BFR) pressurized per standard protocols in addition to our institutional rehabilitation protocol Blood Flow Restriction: In the BFR group, the tourniquet will be pressurized to 50% limb occlusion pressure (LOP), which is the pressure necessary for occluding 50% of arterial limb flow in the upper extremity.
Rotator Cuff Muscle Cross Sectional Area (CSA) Measurement: Supraspinatus
6.33 cm2
Standard Deviation 0
10.15 cm2
Standard Deviation 0

PRIMARY outcome

Timeframe: Week 6

Population: Patient elected to do PT at home and was lost to follow up

Ultrasound will be used to quantify the changes in rotator cuff muscle and distal biceps cross-sectional area before and after therapy. The same multifrequency linear probe (7.5-9.0 MHz, Elegra; Siemens Medical Solutions, Erlangen, Germany) will be used throughout the study.

Outcome measures

Outcome measures
Measure
"Sham" Blood Flow Restriction (BFR)
n=1 Participants
rehabilitation using "sham BFR" as well as our institutional rehabilitation protocol "sham" Blood Flow Restriction: In the sham BFR group, the tourniquet will be pressurized to 0% occlusion pressure, while maintaining enough pressure to keep the tourniquet in place.
Blood Flow Restriction (BFR)
n=1 Participants
Blood Flow Restriction (BFR) pressurized per standard protocols in addition to our institutional rehabilitation protocol Blood Flow Restriction: In the BFR group, the tourniquet will be pressurized to 50% limb occlusion pressure (LOP), which is the pressure necessary for occluding 50% of arterial limb flow in the upper extremity.
Rotator Cuff Muscle Cross Sectional Area (CSA) Measurement: Supraspinatus
6.48 cm2
Standard Deviation 0
10.34 cm2
Standard Deviation 0

PRIMARY outcome

Timeframe: Baseline

Ultrasound will be used to quantify the changes in rotator cuff muscle and distal biceps cross-sectional area before and after therapy. The same multifrequency linear probe (7.5-9.0 MHz, Elegra; Siemens Medical Solutions, Erlangen, Germany) will be used throughout the study.

Outcome measures

Outcome measures
Measure
"Sham" Blood Flow Restriction (BFR)
n=2 Participants
rehabilitation using "sham BFR" as well as our institutional rehabilitation protocol "sham" Blood Flow Restriction: In the sham BFR group, the tourniquet will be pressurized to 0% occlusion pressure, while maintaining enough pressure to keep the tourniquet in place.
Blood Flow Restriction (BFR)
n=1 Participants
Blood Flow Restriction (BFR) pressurized per standard protocols in addition to our institutional rehabilitation protocol Blood Flow Restriction: In the BFR group, the tourniquet will be pressurized to 50% limb occlusion pressure (LOP), which is the pressure necessary for occluding 50% of arterial limb flow in the upper extremity.
Rotator Cuff Muscle Cross Sectional Area (CSA) Measurement: Infraspinatus
11.48 cm2
Standard Deviation 0.24
11.84 cm2
Standard Deviation 0

PRIMARY outcome

Timeframe: Week 3

Population: Patient elected to do PT at home and was lost to follow up

Ultrasound will be used to quantify the changes in rotator cuff muscle and distal biceps cross-sectional area before and after therapy. The same multifrequency linear probe (7.5-9.0 MHz, Elegra; Siemens Medical Solutions, Erlangen, Germany) will be used throughout the study.

Outcome measures

Outcome measures
Measure
"Sham" Blood Flow Restriction (BFR)
n=1 Participants
rehabilitation using "sham BFR" as well as our institutional rehabilitation protocol "sham" Blood Flow Restriction: In the sham BFR group, the tourniquet will be pressurized to 0% occlusion pressure, while maintaining enough pressure to keep the tourniquet in place.
Blood Flow Restriction (BFR)
n=1 Participants
Blood Flow Restriction (BFR) pressurized per standard protocols in addition to our institutional rehabilitation protocol Blood Flow Restriction: In the BFR group, the tourniquet will be pressurized to 50% limb occlusion pressure (LOP), which is the pressure necessary for occluding 50% of arterial limb flow in the upper extremity.
Rotator Cuff Muscle Cross Sectional Area (CSA) Measurement: Infraspinatus
11.24 cm2
Standard Deviation 0
11.89 cm2
Standard Deviation 0

PRIMARY outcome

Timeframe: Week 6

Population: Patient elected to do PT at home and was lost to follow up

Ultrasound will be used to quantify the changes in rotator cuff muscle and distal biceps cross-sectional area before and after therapy. The same multifrequency linear probe (7.5-9.0 MHz, Elegra; Siemens Medical Solutions, Erlangen, Germany) will be used throughout the study.

Outcome measures

Outcome measures
Measure
"Sham" Blood Flow Restriction (BFR)
n=1 Participants
rehabilitation using "sham BFR" as well as our institutional rehabilitation protocol "sham" Blood Flow Restriction: In the sham BFR group, the tourniquet will be pressurized to 0% occlusion pressure, while maintaining enough pressure to keep the tourniquet in place.
Blood Flow Restriction (BFR)
n=1 Participants
Blood Flow Restriction (BFR) pressurized per standard protocols in addition to our institutional rehabilitation protocol Blood Flow Restriction: In the BFR group, the tourniquet will be pressurized to 50% limb occlusion pressure (LOP), which is the pressure necessary for occluding 50% of arterial limb flow in the upper extremity.
Rotator Cuff Muscle Cross Sectional Area (CSA) Measurement: Infraspinatus
11.76 cm2
Standard Deviation 0
12.33 cm2
Standard Deviation 0

PRIMARY outcome

Timeframe: Baseline

Population: 1 patient did not have any data collected at this field

Patients will receive questionnaires (VAS) at Baseline, Week 6, 6 and 12 months after completing rehabilitation - The VAS score can be interpreted into categories of pain or symptom intensity: 0-4 mm: No pain. 5-44 mm: Mild pain. 45-74 mm: Moderate pain. 75-100 mm: Severe pain.

Outcome measures

Outcome measures
Measure
"Sham" Blood Flow Restriction (BFR)
n=1 Participants
rehabilitation using "sham BFR" as well as our institutional rehabilitation protocol "sham" Blood Flow Restriction: In the sham BFR group, the tourniquet will be pressurized to 0% occlusion pressure, while maintaining enough pressure to keep the tourniquet in place.
Blood Flow Restriction (BFR)
n=1 Participants
Blood Flow Restriction (BFR) pressurized per standard protocols in addition to our institutional rehabilitation protocol Blood Flow Restriction: In the BFR group, the tourniquet will be pressurized to 50% limb occlusion pressure (LOP), which is the pressure necessary for occluding 50% of arterial limb flow in the upper extremity.
Visual Analog Scale (VAS) for PAIN - Baseline Scores
5 score on a scale
Standard Deviation 0
3 score on a scale
Standard Deviation 0

PRIMARY outcome

Timeframe: Week 6

Population: Patient elected to do PT at home and was lost to follow up

Patients will receive questionnaires (VAS) at Baseline, Week 6, 6 and 12 months after completing rehabilitation - The VAS score can be interpreted into categories of pain or symptom intensity: 0-4 mm: No pain. 5-44 mm: Mild pain. 45-74 mm: Moderate pain. 75-100 mm: Severe pain.

Outcome measures

Outcome measures
Measure
"Sham" Blood Flow Restriction (BFR)
n=1 Participants
rehabilitation using "sham BFR" as well as our institutional rehabilitation protocol "sham" Blood Flow Restriction: In the sham BFR group, the tourniquet will be pressurized to 0% occlusion pressure, while maintaining enough pressure to keep the tourniquet in place.
Blood Flow Restriction (BFR)
n=1 Participants
Blood Flow Restriction (BFR) pressurized per standard protocols in addition to our institutional rehabilitation protocol Blood Flow Restriction: In the BFR group, the tourniquet will be pressurized to 50% limb occlusion pressure (LOP), which is the pressure necessary for occluding 50% of arterial limb flow in the upper extremity.
Visual Analog Scale (VAS) for PAIN - Week 6 Scores
4 score on a scale
Standard Deviation 0
0 score on a scale
Standard Deviation 0

PRIMARY outcome

Timeframe: Month 6

Population: 1 patient elected to do PT at home and 1 patient had surgery

Patients will receive questionnaires (VAS) at Baseline, Week 6, 6 and 12 months after completing rehabilitation - The VAS score can be interpreted into categories of pain or symptom intensity: 0-4 mm: No pain. 5-44 mm: Mild pain. 45-74 mm: Moderate pain. 75-100 mm: Severe pain.

Outcome measures

Outcome measures
Measure
"Sham" Blood Flow Restriction (BFR)
rehabilitation using "sham BFR" as well as our institutional rehabilitation protocol "sham" Blood Flow Restriction: In the sham BFR group, the tourniquet will be pressurized to 0% occlusion pressure, while maintaining enough pressure to keep the tourniquet in place.
Blood Flow Restriction (BFR)
n=1 Participants
Blood Flow Restriction (BFR) pressurized per standard protocols in addition to our institutional rehabilitation protocol Blood Flow Restriction: In the BFR group, the tourniquet will be pressurized to 50% limb occlusion pressure (LOP), which is the pressure necessary for occluding 50% of arterial limb flow in the upper extremity.
Visual Analog Scale (VAS) for PAIN - Month 6 Scores
0 Score on a scale
Standard Deviation 0

PRIMARY outcome

Timeframe: Month 12

Population: All patients lost to follow up, value never collected

Patients will receive questionnaires (VAS) at Baseline, Week 6, 6 and 12 months after completing rehabilitation - The VAS score can be interpreted into categories of pain or symptom intensity: 0-4 mm: No pain. 5-44 mm: Mild pain. 45-74 mm: Moderate pain. 75-100 mm: Severe pain.

Outcome measures

Outcome data not reported

PRIMARY outcome

Timeframe: Baseline

The American Shoulder and Elbow Surgeons (ASES) shoulder score is a patient-completed assessment for shoulder function and pain, ranging from 0 to 100, with higher scores indicating better function. Scoring involves a 50-point pain component derived from a visual analog scale (VAS), and a 50-point functional component from 10 activities of daily living questions, which are then weighted and added for the final score

Outcome measures

Outcome measures
Measure
"Sham" Blood Flow Restriction (BFR)
n=2 Participants
rehabilitation using "sham BFR" as well as our institutional rehabilitation protocol "sham" Blood Flow Restriction: In the sham BFR group, the tourniquet will be pressurized to 0% occlusion pressure, while maintaining enough pressure to keep the tourniquet in place.
Blood Flow Restriction (BFR)
n=1 Participants
Blood Flow Restriction (BFR) pressurized per standard protocols in addition to our institutional rehabilitation protocol Blood Flow Restriction: In the BFR group, the tourniquet will be pressurized to 50% limb occlusion pressure (LOP), which is the pressure necessary for occluding 50% of arterial limb flow in the upper extremity.
American Shoulder and Elbow Surgeons Standardized Shoulder Assessment Form (ASES) Baseline Scores
42.5 score on a scale
Standard Deviation 6.6
73 score on a scale
Standard Deviation 0

PRIMARY outcome

Timeframe: Week 6

Population: Patient elected to do PT at home and was lost to follow up

The American Shoulder and Elbow Surgeons (ASES) shoulder score is a patient-completed assessment for shoulder function and pain, ranging from 0 to 100, with higher scores indicating better function. Scoring involves a 50-point pain component derived from a visual analog scale (VAS), and a 50-point functional component from 10 activities of daily living questions, which are then weighted and added for the final score

Outcome measures

Outcome measures
Measure
"Sham" Blood Flow Restriction (BFR)
n=1 Participants
rehabilitation using "sham BFR" as well as our institutional rehabilitation protocol "sham" Blood Flow Restriction: In the sham BFR group, the tourniquet will be pressurized to 0% occlusion pressure, while maintaining enough pressure to keep the tourniquet in place.
Blood Flow Restriction (BFR)
n=1 Participants
Blood Flow Restriction (BFR) pressurized per standard protocols in addition to our institutional rehabilitation protocol Blood Flow Restriction: In the BFR group, the tourniquet will be pressurized to 50% limb occlusion pressure (LOP), which is the pressure necessary for occluding 50% of arterial limb flow in the upper extremity.
American Shoulder and Elbow Surgeons Standardized Shoulder Assessment Form (ASES) Week 6 Scores
42 score on a scale
Standard Deviation 0
95 score on a scale
Standard Deviation 0

PRIMARY outcome

Timeframe: Month 6

Population: 2 Sham patients lost to follow up and measure was never reported or collected.

The American Shoulder and Elbow Surgeons (ASES) shoulder score is a patient-completed assessment for shoulder function and pain, ranging from 0 to 100, with higher scores indicating better function. Scoring involves a 50-point pain component derived from a visual analog scale (VAS), and a 50-point functional component from 10 activities of daily living questions, which are then weighted and added for the final score

Outcome measures

Outcome measures
Measure
"Sham" Blood Flow Restriction (BFR)
rehabilitation using "sham BFR" as well as our institutional rehabilitation protocol "sham" Blood Flow Restriction: In the sham BFR group, the tourniquet will be pressurized to 0% occlusion pressure, while maintaining enough pressure to keep the tourniquet in place.
Blood Flow Restriction (BFR)
n=1 Participants
Blood Flow Restriction (BFR) pressurized per standard protocols in addition to our institutional rehabilitation protocol Blood Flow Restriction: In the BFR group, the tourniquet will be pressurized to 50% limb occlusion pressure (LOP), which is the pressure necessary for occluding 50% of arterial limb flow in the upper extremity.
American Shoulder and Elbow Surgeons Standardized Shoulder Assessment Form (ASES) Month 6 Scores
100 score on a scale
Standard Deviation 0

PRIMARY outcome

Timeframe: Month 12

Population: Patient lost to follow up, value never collected -Patient lost to follow up, value never collected

The American Shoulder and Elbow Surgeons (ASES) shoulder score is a patient-completed assessment for shoulder function and pain, ranging from 0 to 100, with higher scores indicating better function. Scoring involves a 50-point pain component derived from a visual analog scale (VAS), and a 50-point functional component from 10 activities of daily living questions, which are then weighted and added for the final score

Outcome measures

Outcome data not reported

PRIMARY outcome

Timeframe: Baseline

The DASH score for patients ranges from 0 to 100, with 0 representing no disability and 100 indicating the greatest possible functional impairment of the upper extremity. Patients answer a 30-item questionnaire on a five-point scale (0-4 or 0-5 depending on the scale used), rating their ability to perform tasks and their symptoms. The sum of the raw scores is then transformed into the final 0-100 DASH score

Outcome measures

Outcome measures
Measure
"Sham" Blood Flow Restriction (BFR)
n=2 Participants
rehabilitation using "sham BFR" as well as our institutional rehabilitation protocol "sham" Blood Flow Restriction: In the sham BFR group, the tourniquet will be pressurized to 0% occlusion pressure, while maintaining enough pressure to keep the tourniquet in place.
Blood Flow Restriction (BFR)
n=1 Participants
Blood Flow Restriction (BFR) pressurized per standard protocols in addition to our institutional rehabilitation protocol Blood Flow Restriction: In the BFR group, the tourniquet will be pressurized to 50% limb occlusion pressure (LOP), which is the pressure necessary for occluding 50% of arterial limb flow in the upper extremity.
Disabilities of the Arm, Shoulder, and Hand Scale (DASH) Baseline Scores
62.6 score on a scale
Standard Deviation 27.4
35.5 score on a scale
Standard Deviation 0

PRIMARY outcome

Timeframe: Week 6

Population: Patient elected to do PT at home and was lost to follow up

The DASH score for patients ranges from 0 to 100, with 0 representing no disability and 100 indicating the greatest possible functional impairment of the upper extremity. Patients answer a 30-item questionnaire on a five-point scale (0-4 or 0-5 depending on the scale used), rating their ability to perform tasks and their symptoms. The sum of the raw scores is then transformed into the final 0-100 DASH score

Outcome measures

Outcome measures
Measure
"Sham" Blood Flow Restriction (BFR)
n=1 Participants
rehabilitation using "sham BFR" as well as our institutional rehabilitation protocol "sham" Blood Flow Restriction: In the sham BFR group, the tourniquet will be pressurized to 0% occlusion pressure, while maintaining enough pressure to keep the tourniquet in place.
Blood Flow Restriction (BFR)
n=1 Participants
Blood Flow Restriction (BFR) pressurized per standard protocols in addition to our institutional rehabilitation protocol Blood Flow Restriction: In the BFR group, the tourniquet will be pressurized to 50% limb occlusion pressure (LOP), which is the pressure necessary for occluding 50% of arterial limb flow in the upper extremity.
Disabilities of the Arm, Shoulder, and Hand Scale (DASH) Week 6 Scores
68.4 score on a scale
Standard Deviation 0
0 score on a scale
Standard Deviation 0

PRIMARY outcome

Timeframe: Month 6

Population: 2 Sham patients lost to follow up and measure was never reported or collected.

The DASH score for patients ranges from 0 to 100, with 0 representing no disability and 100 indicating the greatest possible functional impairment of the upper extremity. Patients answer a 30-item questionnaire on a five-point scale (0-4 or 0-5 depending on the scale used), rating their ability to perform tasks and their symptoms. The sum of the raw scores is then transformed into the final 0-100 DASH score

Outcome measures

Outcome measures
Measure
"Sham" Blood Flow Restriction (BFR)
rehabilitation using "sham BFR" as well as our institutional rehabilitation protocol "sham" Blood Flow Restriction: In the sham BFR group, the tourniquet will be pressurized to 0% occlusion pressure, while maintaining enough pressure to keep the tourniquet in place.
Blood Flow Restriction (BFR)
n=1 Participants
Blood Flow Restriction (BFR) pressurized per standard protocols in addition to our institutional rehabilitation protocol Blood Flow Restriction: In the BFR group, the tourniquet will be pressurized to 50% limb occlusion pressure (LOP), which is the pressure necessary for occluding 50% of arterial limb flow in the upper extremity.
Disabilities of the Arm, Shoulder, and Hand Scale (DASH) Month 6 Scores
0 score on a scale
Standard Deviation 0

PRIMARY outcome

Timeframe: Month 12

Population: Patient lost to follow up, value never collected - Patient lost to follow up, value never collected

The DASH score for patients ranges from 0 to 100, with 0 representing no disability and 100 indicating the greatest possible functional impairment of the upper extremity. Patients answer a 30-item questionnaire on a five-point scale (0-4 or 0-5 depending on the scale used), rating their ability to perform tasks and their symptoms. The sum of the raw scores is then transformed into the final 0-100 DASH score

Outcome measures

Outcome data not reported

PRIMARY outcome

Timeframe: Baseline

Population: The lab test required to run these data is a 96+ well plate that costs nearly $1000+. Our department could not financially justify buying this test to analyze 3 data points that would not provide reliable data for publication. Therefore, this test was never performed or analyzed.

Patients will receive the blood draws in the physical therapy clinic - ELISA will be used to quantify plasma levels

Outcome measures

Outcome data not reported

PRIMARY outcome

Timeframe: Week 3

Population: The lab test required to run these data is a 96+ well plate that costs nearly $1000+. Our department could not financially justify buying this test to analyze 3 data points that would not provide reliable data for publication. Therefore, this test was never performed or analyzed.

Patients will receive the blood draws in the physical therapy clinic - ELISA will be used to quantify plasma levels

Outcome measures

Outcome data not reported

PRIMARY outcome

Timeframe: Week 6

Population: The lab test required to run these data is a 96+ well plate that costs nearly $1000+. Our department could not financially justify buying this test to analyze 3 data points that would not provide reliable data for publication. Therefore, this test was never performed or analyzed.

Patients will receive the blood draws in the physical therapy clinic - ELISA will be used to quantify plasma levels

Outcome measures

Outcome data not reported

PRIMARY outcome

Timeframe: Baseline

Population: The lab test required to run these data is a 96+ well plate that costs nearly $1000+. Our department could not financially justify buying this test to analyze 3 data points that would not provide reliable data for publication. Therefore, this test was never performed or analyzed.

Patients will receive the blood draws in the physical therapy clinic - ELISA will be used to quantify plasma levels

Outcome measures

Outcome data not reported

PRIMARY outcome

Timeframe: Week 3

Population: The lab test required to run these data is a 96+ well plate that costs nearly $1000+. Our department could not financially justify buying this test to analyze 3 data points that would not provide reliable data for publication. Therefore, this test was never performed or analyzed.

Patients will receive the blood draws in the physical therapy clinic - ELISA will be used to quantify plasma levels

Outcome measures

Outcome data not reported

PRIMARY outcome

Timeframe: Week 6

Population: The lab test required to run these data is a 96+ well plate that costs nearly $1000+. Our department could not financially justify buying this test to analyze 3 data points that would not provide reliable data for publication. Therefore, this test was never performed or analyzed.

Patients will receive the blood draws in the physical therapy clinic - ELISA will be used to quantify plasma levels

Outcome measures

Outcome data not reported

PRIMARY outcome

Timeframe: Baseline

Population: The lab test required to run these data is a 96+ well plate that costs nearly $1000+. Our department could not financially justify buying this test to analyze 3 data points that would not provide reliable data for publication. Therefore, this test was never performed or analyzed.

Patients will receive the blood draws in the physical therapy clinic - ELISA will be used to quantify plasma levels

Outcome measures

Outcome data not reported

PRIMARY outcome

Timeframe: Week 3

Population: The lab test required to run these data is a 96+ well plate that costs nearly $1000+. Our department could not financially justify buying this test to analyze 3 data points that would not provide reliable data for publication. Therefore, this test was never performed or analyzed.

Patients will receive the blood draws in the physical therapy clinic - ELISA will be used to quantify plasma levels

Outcome measures

Outcome data not reported

PRIMARY outcome

Timeframe: Week 6

Population: The lab test required to run these data is a 96+ well plate that costs nearly $1000+. Our department could not financially justify buying this test to analyze 3 data points that would not provide reliable data for publication. Therefore, this test was never performed or analyzed.

Patients will receive the blood draws in the physical therapy clinic - ELISA will be used to quantify plasma levels

Outcome measures

Outcome data not reported

Adverse Events

Blood Flow Restriction (BFR)

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

"Sham" Blood Flow Restriction (BFR)

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Adverse event data not reported

Additional Information

Kristen Faith Nicholson, PhD

Wake Forest University Health Sciences

Phone: 704-355-2000

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place